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- #!/bin/sh
- #
- # Copyright (C) 2000-2005 Erik Andersen <andersen@uclibc.org>
- #
- # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
- #
- usage() {
- echo ""
- echo "usage: "`basename $0`" -k KERNEL_SOURCE_DIRECTORY -t TARGET_ARCH"
- echo ""
- echo "This utility scans the KERNEL_SOURCE_DIRECTORY directory and"
- echo "checks that it contains well formed kernel headers suitable"
- echo "for inclusion as the include/linux/ directory provided by"
- echo "uClibc."
- echo ""
- echo "If the specified kernel headers are present and already"
- echo "configured for the architecture specified by TARGET_ARCH,"
- echo "they will be used as-is."
- echo ""
- echo "If the specified kernel headers are missing entirely, this"
- echo "script will return an error."
- echo ""
- echo "If the specified kernel headers are present, but are either"
- echo "not yet configured or are configured for an architecture"
- echo "different than that specified by TARGET_ARCH, this script"
- echo "will attempt to 'fix' the kernel headers and make them"
- echo "suitable for use by uClibc. This fixing process may fail."
- echo "It is therefore best to always provide kernel headers that"
- echo "are already configured for the selected architecture."
- echo ""
- echo "Most Linux distributions provide 'kernel-headers' packages"
- echo "that are suitable for use by uClibc."
- echo ""
- echo ""
- exit 1
- }
- #
- # Parse our arguments
- #
- HAS_MMU="y"
- while [ -n "$1" ]; do
- case $1 in
- -k ) shift; if [ -n "$1" ]; then KERNEL_SOURCE=$1; shift; else usage; fi; ;;
- -t ) shift; if [ -n "$1" ]; then TARGET_ARCH=$1; shift; else usage; fi; ;;
- -n ) shift; HAS_MMU="n"; ;;
- -* ) usage; ;;
- * ) usage; ;;
- esac
- done
- #
- # Perform some sanity checks on our kernel sources
- #
- if [ ! -f "$KERNEL_SOURCE/Makefile" -a ! -f "$KERNEL_SOURCE/include/linux/version.h" ]; then
- echo ""
- echo ""
- echo "The file $KERNEL_SOURCE/Makefile or $KERNEL_SOURCE/include/linux/version.h is missing!"
- echo "Perhaps your kernel source is broken?"
- echo ""
- echo ""
- exit 1
- fi
- if [ ! -d "$KERNEL_SOURCE" ]; then
- echo ""
- echo ""
- echo "$KERNEL_SOURCE is not a directory"
- echo ""
- echo ""
- exit 1
- fi
- #
- # Create a symlink to include/asm
- #
- rm -f include/asm*
- if [ ! -d "$KERNEL_SOURCE/include/asm" ]; then
- echo ""
- echo ""
- echo "The symlink $KERNEL_SOURCE/include/asm is missing\!"
- echo "Perhaps you forgot to configure your kernel source?"
- echo "You really should configure your kernel source tree so I"
- echo "do not have to try and guess about this sort of thing."
- echo ""
- echo "Attempting to guess a usable value...."
- echo ""
- echo ""
- sleep 1
- if [ "$TARGET_ARCH" = "powerpc" ]; then
- set -x
- ln -fs $KERNEL_SOURCE/include/asm-ppc include/asm
- set +x
- elif [ "$TARGET_ARCH" = "mips" ]; then
- set -x
- ln -fs $KERNEL_SOURCE/include/asm-mips include/asm
- set +x
- elif [ "$TARGET_ARCH" = "arm" ]; then
- set -x
- ln -fs $KERNEL_SOURCE/include/asm-arm include/asm
- set +x
- if [ ! -L $KERNEL_SOURCE/include/asm-arm/proc ]; then
- if [ ! -L proc ]; then
- (
- cd include/asm
- ln -fs proc-armv proc
- ln -fs arch-ebsa285 arch
- )
- fi
- fi
- elif [ "$TARGET_ARCH" = "cris" ]; then
- set -x
- ln -fs $KERNEL_SOURCE/include/asm-cris include/asm
- set +x
- elif [ "$HAS_MMU" != "y" ]; then
- if [ -d $KERNEL_SOURCE/include/asm-${TARGET_ARCH}nommu ]; then
- set -x
- ln -fs $KERNEL_SOURCE/include/asm-${TARGET_ARCH}nommu include/asm
- set +x
- else
- set -x
- ln -fs $KERNEL_SOURCE/include/asm-$TARGET_ARCH include/asm
- set +x
- fi
- else
- set -x
- ln -fs $KERNEL_SOURCE/include/asm-$TARGET_ARCH include/asm
- set +x
- fi;
- else
- # No guessing required.....
- for x in $KERNEL_SOURCE/include/asm* ; do
- ln -fs ${x} include/
- done
- fi
- #
- # Annoyingly, 2.6.x kernel headers also need an include/asm-generic/ directory
- #
- if [ -e $KERNEL_SOURCE/include/asm-generic ]; then
- rm -f include/asm-generic
- ln -fs $KERNEL_SOURCE/include/asm-generic include/asm-generic
- fi
- #
- # Create the include/linux symlink.
- #
- rm -f include/linux
- ln -fs $KERNEL_SOURCE/include/linux include/linux
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